Measurement, modeling, and analysis of a peer-to-peer file-sharing workload
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Influences on cooperation in BitTorrent communities
Proceedings of the 2005 ACM SIGCOMM workshop on Economics of peer-to-peer systems
Correlating Topology and Path Characteristics of Overlay Networks and the Internet
CCGRID '06 Proceedings of the Sixth IEEE International Symposium on Cluster Computing and the Grid
Understanding churn in peer-to-peer networks
Proceedings of the 6th ACM SIGCOMM conference on Internet measurement
Measurements, analysis, and modeling of BitTorrent-like systems
IMC '05 Proceedings of the 5th ACM SIGCOMM conference on Internet Measurement
A Measurement of a large-scale Peer-to-Peer Live Video Streaming System
ICPPW '07 Proceedings of the 2007 International Conference on Parallel Processing Workshops
Bittorrent is an auction: analyzing and improving bittorrent's incentives
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
Free-Riding, Fairness, and Firewalls in P2P File-Sharing
P2P '08 Proceedings of the 2008 Eighth International Conference on Peer-to-Peer Computing
Resource demand and supply in BitTorrent content-sharing communities
Computer Networks: The International Journal of Computer and Telecommunications Networking
The bittorrent p2p file-sharing system: measurements and analysis
IPTPS'05 Proceedings of the 4th international conference on Peer-to-Peer Systems
BTWorld: towards observing the global BitTorrent file-sharing network
Proceedings of the 19th ACM International Symposium on High Performance Distributed Computing
Collusion-resilient credit-based reputations for peer-to-peer content distribution
Proceedings of the 2010 Workshop on Economics of Networks, Systems, and Computation
On long-term social relationships in peer-to-peer systems
Proceedings of the Nineteenth International Workshop on Quality of Service
On the impact of seed scheduling in peer-to-peer networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Economics of BitTorrent communities
Proceedings of the 21st international conference on World Wide Web
Distributed online flash-crowd detection in P2P swarming systems
Computer Communications
BitTorrent-like P2P approaches for VoD: A comparative study
Computer Networks: The International Journal of Computer and Telecommunications Networking
User behaviors in private BitTorrent communities
Computer Networks: The International Journal of Computer and Telecommunications Networking
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BitTorrent communities, both public and private, are immensely popular in the Internet, with tens of millions of users simultaneously active at any given moment. Public and private BitTorrent communities are managed in different ways - for instance, some private communities enforce sharing ratios, have strict rules for content management, have a certain level of community oversight, and maintain a strong sense of exclusiveness. In this paper, we present the results of extensive measurements of more than half a million peers in five communities, ranging from highly popular and well-known public communities to elite private communities that can only be joined by invitation. We observe that the performance experienced by downloaders in the private communities is by far superior to the performance in the public communities, and we observe significant differences in connectability, seeder/leecher ratio, and seeding duration. Based on our results, we conjecture that when effective ratio enforcement mechanisms are in place, BitTorrent's tit-for-tat mechanism is hardly influential anymore. Our multi-community, multi-swarm measurements are significantly broader and more extensive than any earlier measurement study on BitTorrent.